<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>按从大到小排序</title>
    <script>
        var arr = [70, 67, 49, 35, 59, 98, 100, 20];

        function bubbleSort(arr) {
            var len = arr.length;
            for (var i = 0; i < len - 1; i++) {
                for (var j = 0; j < len - 1 - i; j++) {
                    if (arr[j] < arr[j + 1]) {
                        var temp = arr[j];
                        arr[j] = arr[j + 1];
                        arr[j + 1] = temp;
                    }
                }
                console.log("第" + (i + 1) + "轮结果：" + "(" + arr.join(" ") + ")");
            }
            console.log("排序完成：" + "(" + arr.join(" ") + ")");
        }

        bubbleSort(arr);
    </script>
</head>
<body>
</body>
</html>